/* =========================================================
   DUSK VALLEY TECH | PROFESSIONAL CORPORATE THEME CSS
   Author: Senior CSS/UI Developer
   Guidelines: Mobile-first, Flexbox-only, No CSS Grid/Columns
   Palette: Blue/Gray/Accent, Montserrat+Roboto
   ========================================================= */

/* ===== CSS RESET & NORMALIZE ===== */
html { box-sizing: border-box; }
*, *::before, *::after { box-sizing: inherit; margin: 0; padding: 0; }
body, h1, h2, h3, h4, h5, h6, p, ul, ol, figure { margin: 0; padding: 0; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; border: 0; }
a { text-decoration: none; color: inherit; }
:focus { outline: 2px solid #41B3A3; outline-offset: 2px; }

/* ===== ROOT VARIABLES ===== */
:root {
  --color-primary: #1B263B;
  --color-secondary: #41B3A3;
  --color-accent: #F3F4F6;
  --color-white: #fff;
  --color-gray-100: #F3F4F6;
  --color-gray-200: #E5E7EB;
  --color-gray-300: #D4D8DD;
  --color-gray-400: #A9B4C2;
  --color-gray-700: #364153;
  --color-gray-900: #222B37;
  --shadow-sm: 0 1px 3px rgba(28,34,43, 0.08);
  --shadow-md: 0 4px 16px rgba(27,38,59, 0.10);
  --shadow-lg: 0 8px 32px rgba(27,38,59, 0.14);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --transition: 0.22s cubic-bezier(.44,.13,.48,.87);
  --font-display: 'Montserrat', Arial, Helvetica, sans-serif;
  --font-body: 'Roboto', Arial, Helvetica, sans-serif;
}

/* ===== BASE TYPOGRAPHY ===== */
html {
  font-size: 16px;
}
body {
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--color-gray-900);
  background-color: var(--color-gray-100);
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.15;
  margin-bottom: 18px;
}
h1 { font-size: 2.5rem; margin-bottom: 20px; }
h2 { font-size: 2rem; margin-bottom: 16px; }
h3 { font-size: 1.4rem; margin-bottom: 14px; }
h4 { font-size: 1.1rem; }
p, ul, ol { margin-bottom: 18px; }
strong { font-weight: 700; color: var(--color-primary); }

/* Headings contrast in testimonials (for white bg): */
.testimonial-card h2, .testimonial-card p, .testimonial-meta {
  color: var(--color-gray-900);
}

/* ===== LAYOUT - CONTAINER SYSTEM ===== */
.container {
  width: 100%;
  max-width: 1220px;
  padding-left: 20px;
  padding-right: 20px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  flex-wrap: nowrap;
}
.content-wrapper {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* ===== HEADER ===== */
header {
  background: var(--color-white);
  box-shadow: 0 2px 10px rgba(27,38,59,0.05);
  position: relative;
  z-index: 20;
}
header .container {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 26px;
  min-height: 72px;
  padding-top: 8px;
  padding-bottom: 8px;
}
.brand-logo img { height: 38px; }
.main-nav {
  display: flex;
  flex-direction: row;
  gap: 22px;
  flex-wrap: wrap;
  margin-left: 30px;
}
.main-nav a {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--color-primary);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  position: relative;
  transition: background var(--transition), color var(--transition);
}
.main-nav a:hover, .main-nav a:focus {
  background: var(--color-gray-300);
  color: var(--color-secondary);
}
.cta.primary {
  background: var(--color-secondary);
  color: var(--color-white);
  font-family: var(--font-display);
  font-weight: 600;
  padding: 13px 32px;
  margin-left: auto;
  margin-right: 6px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  border: none;
  cursor: pointer;
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}
.cta.primary:hover, .cta.primary:focus {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px) scale(1.02);
}
.mobile-menu-toggle {
  background: none;
  border: none;
  color: var(--color-primary);
  font-size: 2.2rem;
  padding: 6px 13px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  margin-left: 8px;
  display: none;
  line-height: 1;
  transition: background var(--transition), color var(--transition);
}
.mobile-menu-toggle:focus, .mobile-menu-toggle:hover {
  background: var(--color-gray-200);
  color: var(--color-secondary);
}

/* ===== MOBILE MENU ===== */
.mobile-menu {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(27,38,59, 0.90);
  backdrop-filter: blur(2px);
  z-index: 50;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  transition: opacity var(--transition), transform var(--transition);
  opacity: 0;
  pointer-events: none;
  transform: translateX(100%);
}
.mobile-menu.open {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
}
.mobile-menu-close {
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 2rem;
  margin: 30px 30px 0 0;
  cursor: pointer;
  padding: 8px 15px;
  border-radius: var(--radius-md);
  align-self: flex-end;
  transition: background var(--transition), color var(--transition);
}
.mobile-menu-close:hover, .mobile-menu-close:focus {
  background: var(--color-secondary);
  color: var(--color-gray-900);
}
.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 28px;
  align-items: flex-start;
  width: 100%;
  padding: 30px 40px;
}
.mobile-nav a {
  color: var(--color-white);
  font-size: 1.25rem;
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: 12px 0;
  border-radius: var(--radius-sm);
  width: 100%;
  transition: background var(--transition), color var(--transition);
}
.mobile-nav a:hover, .mobile-nav a:focus {
  background: var(--color-secondary);
  color: var(--color-primary);
}

/* ===== HERO SECTION ===== */
.hero {
  padding: 64px 0 44px 0;
  background: var(--color-primary);
  color: var(--color-white);
}
.hero .container { align-items: flex-start; }
.hero .content-wrapper {
  justify-content: center;
  align-items: flex-start;
  gap: 14px;
}
.hero h1, .hero h2, .hero h3 {
  color: var(--color-white);
}
.hero p {
  font-size: 1.15rem;
  color: var(--color-gray-200);
  margin-bottom: 20px;
}
.hero .cta.primary {
  margin-left: 0;
  margin-top: 22px;
  background: var(--color-secondary);
  color: var(--color-white);
}
.hero .cta.primary:hover {
  background: var(--color-gray-200);
  color: var(--color-primary);
}

/* ===== SECTION SPACING (MANDATORY) ===== */
.section, .features, .services, .testimonials, .contact, .about, .feature-blocks, .services-overview, .blog-overview, .newsletter, .gadgets-categories, .cta, .privacy-policy, .cookies-policy, .regulations, .thank-you, .rodo-section, .contact-details-full, .map-location, .features, .services {
  margin-bottom: 60px;
  padding: 40px 20px;
}

/* ===== CONTENT LAYOUT FLEXBOX UTILS ===== */
.card-container, .service-grid, .testimonial-carousel {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: flex-start;
}
.card, .service-card, .testimonial-card {
  margin-bottom: 20px;
  position: relative;
}
.content-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: space-between;
}
.text-image-section { /* for sections with image and text */
  display: flex;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
}
.testimonial-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px;
}
.feature-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 15px;
}
.text-section {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* ===== CARD DESIGNS ===== */
.service-card, .card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 32px 24px 24px 24px;
  min-width: 260px;
  min-height: 300px;
  flex: 1 1 310px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  transition: box-shadow var(--transition), transform var(--transition);
}
.service-card:hover, .card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px) scale(1.02);
}
.service-card img {
  height: 44px;
  margin-bottom: 14px;
}
.service-card h3 {
  font-size: 1.20rem;
  color: var(--color-primary);
  margin-bottom: 10px;
}
.service-card p {
  font-size: 1rem;
  color: var(--color-gray-900);
  margin-bottom: 10px;
}
.service-price {
  font-family: var(--font-display);
  color: var(--color-secondary);
  font-weight: 600;
  font-size: 1rem;
  margin-top: auto;
}

/* ===== FEATURES LISTS & ITEMS ===== */
.features ul, .about ul, .gadgets-categories ul, .feature-blocks ul, .faq-block ul, .support-tips ul, .blog-list, .categories-tags {
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 1.05rem;
  color: var(--color-gray-900);
}
.features ul li, .about ul li, .gadgets-categories ul li, .feature-blocks ul li {
  display: flex;
  align-items: center;
  gap: 11px;
  padding-left: 2px;
}
.features ul li img, .about ul li img, .gadgets-categories ul li img {
  height: 28px;
  min-width: 28px;
  margin-right: 7px;
}
.innovative-features ul { gap: 7px; font-size: 1rem; color: var(--color-gray-900); }

/* ===== TESTIMONIALS (MANDATORY CONTRAST!) ===== */
.testimonials, .testimonial-card {
  background: var(--color-gray-100);
}
.testimonial-carousel {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.testimonial-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 24px 30px 20px 26px;
  flex: 1 1 330px;
  min-width: 230px;
  min-height: 120px;
  display: flex;
  flex-direction: column;
  gap: 17px;
  margin-bottom: 20px;
  border-left: 5px solid var(--color-secondary);
  color: var(--color-gray-900);
  transition: box-shadow var(--transition), transform var(--transition);
}
.testimonial-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px) scale(1.013);
}
.testimonial-meta {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 12px;
  margin-top: 4px;
  font-family: var(--font-display);
  color: var(--color-primary);
  font-size: 1.03rem;
  font-weight: 500;
}
.stars {
  color: #F9C846; /* gold */
  font-size: 1.18rem;
  letter-spacing: 0.04em;
}

/* ===== CALL TO ACTION SECTIONS ===== */
.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-secondary);
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 13px 32px;
  margin-top: 18px;
  border: none;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.cta:hover, .cta:focus {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
  transform: scale(1.04);
}
.cta.primary {
  background: var(--color-secondary);
  color: var(--color-white);
}

/* ===== BLOG OVERVIEW & CATEGORIES ===== */
.blog-list {
  padding-left: 0;
  margin-bottom: 12px;
  gap: 10px;
}
.blog-list li {
  background: var(--color-gray-100);
  border-left: 4px solid var(--color-secondary);
  padding: 14px 20px 14px 14px;
  border-radius: var(--radius-sm);
  color: var(--color-primary);
}
.categories-tags {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  font-size: 0.97rem;
}
.categories-tags a {
  color: var(--color-secondary);
  background: var(--color-gray-200);
  padding: 4px 14px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
}
.categories-tags a:hover {
  background: var(--color-secondary);
  color: var(--color-white);
}

/* ===== FOOTER ===== */
footer {
  background: var(--color-primary);
  color: var(--color-accent);
  padding: 36px 0 20px 0;
  margin-top: 60px;
  box-shadow: 0 -4px 16px rgba(27,38,59, 0.09);
}
footer .container {
  display: flex;
  flex-direction: column;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}
.footer-menu {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  margin-bottom: 12px;
}
.footer-menu a {
  color: var(--color-accent);
  font-size: 0.96rem;
  transition: color var(--transition), text-decoration var(--transition);
}
.footer-menu a:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}
.footer-brand { margin-bottom: 6px; }
.footer-brand img { height: 38px; }
.footer-social { display: flex; gap: 16px; margin-bottom: 8px; }
.footer-social a { display: inline-flex; align-items: center;}
.footer-social img { height: 28px; filter: grayscale(1) brightness(1.22); transition: filter var(--transition); }
.footer-social a:hover img { filter: none; }
.footer-copy {
  font-size: 0.93rem;
  color: var(--color-gray-300);
  margin-top: 6px;
}

/* ===== CONTACT DETAILS, MAP, FAQ ===== */
.contact-details, .contact-details-full ul {
  display: flex;
  flex-direction: column;
  gap: 13px;
  font-size: 1.03rem;
}
.contact-details a,
.contact-details-full a {
  color: var(--color-secondary);
  transition: color var(--transition), text-decoration var(--transition);
}
.contact-details a:hover, .contact-details a:focus {
  text-decoration: underline;
  color: var(--color-primary);
}
.faq-block ul, .support-tips ul {
  gap: 12px;
  font-size: 1rem;
}
.faq-block h3, .support-tips h3 {
  font-size: 1.08rem;
  margin: 12px 0 7px 0;
  color: var(--color-secondary);
}

/* ===== COOKIE CONSENT BANNER & MODAL ===== */
.cookie-banner {
  position: fixed;
  left: 0; bottom: 0; right: 0;
  z-index: 9999;
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 -2px 10px rgba(27,38,59,0.12);
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 24px;
  font-size: 0.98rem;
  animation: cookie-slide-in var(--transition) ease;
}
@keyframes cookie-slide-in {
  from { transform: translateY(100%); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}
.cookie-banner span {
  flex: 1 1 0%;
  color: var(--color-gray-100);
}
.cookie-banner .cookie-btn {
  background: var(--color-secondary);
  color: var(--color-white);
  padding: 8px 20px;
  border-radius: var(--radius-md);
  border: none;
  margin-left: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
}
.cookie-banner .cookie-btn:hover, .cookie-banner .cookie-btn:focus {
  background: var(--color-white);
  color: var(--color-primary);
  box-shadow: var(--shadow-md);
}
.cookie-banner .cookie-btn.settings {
  background: var(--color-gray-400);
  color: var(--color-white);
}
.cookie-banner .cookie-btn.settings:hover {
  background: var(--color-accent);
  color: var(--color-primary);
}

/* COOKIE SETTINGS MODAL */
.cookie-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(27,38,59,0.48);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  animation: modal-fade-in var(--transition) ease;
}
@keyframes modal-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}
.cookie-modal {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  min-width: 320px;
  max-width: 93vw;
  padding: 40px 30px 30px 30px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  position: relative;
  animation: modal-pop-in var(--transition) cubic-bezier(.38,.06,.43,.98);
}
@keyframes modal-pop-in {
  from { transform: scale(0.7); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}
.cookie-modal h2 {
  font-size: 1.18rem;
  color: var(--color-primary);
  margin-bottom: 10px;
}
.cookie-modal .modal-close {
  position: absolute;
  top: 12px; right: 16px;
  background: none;
  border: none;
  color: var(--color-gray-400);
  font-size: 1.4rem;
  cursor: pointer;
  transition: color var(--transition), background var(--transition);
}
.cookie-modal .modal-close:hover, .cookie-modal .modal-close:focus {
  color: var(--color-secondary);
  background: var(--color-gray-200);
}
.cookie-categories {
  display: flex;
  flex-direction: column;
  gap: 14px;
  font-size: 1.03rem;
}
.cookie-categories label {
  display: flex;
  align-items: center;
  gap: 14px;
}
.cookie-categories input[type="checkbox"] {
  accent-color: var(--color-secondary);
  width: 21px; height: 21px;
}
.cookie-categories .always-enabled {
  font-weight: 600;
  color: var(--color-gray-900);
}
.cookie-modal .modal-actions {
  margin-top: 12px;
  display: flex;
  gap: 18px;
  justify-content: flex-end;
}
.cookie-modal .modal-actions .cookie-btn {
  font-family: var(--font-display);
  padding: 10px 22px;
}

/* ===== THANK YOU SCREEN ===== */
.thank-you .content-wrapper {
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px 0 0 0;
}
.thank-you .cta.primary {
  margin-top: 28px;
}

/* ===== ACCESSIBILITY ===== */
.sr-only {
  position:absolute !important;
  width:1px !important;
  height:1px !important;
  padding:0 !important;
  overflow:hidden !important;
  clip:rect(1px, 1px, 1px, 1px) !important;
  white-space:nowrap !important;
  border:0 !important;
}

/* ===== RESPONSIVE: MOBILE FIRST APPROACH ===== */
@media (max-width: 1200px) {
  .container { max-width: 960px; }
  .main-nav { gap: 13px; }
}
@media (max-width: 900px) {
  .container { max-width: 98vw; }
  .main-nav { gap: 8px; }
}
@media (max-width: 900px) {
  .service-grid, .testimonial-carousel {
    flex-wrap: wrap;
    gap: 16px;
  }
  .features ul, .about ul { gap: 8px; }
}
@media (max-width: 820px) {
  .main-nav { display: none; }
  .mobile-menu-toggle { display: block; }
  .cta.primary {
    margin-left: auto;
    margin-right: 0;
  }
}
@media (max-width: 768px) {
  html { font-size: 15px; }
  h1 { font-size: 1.9rem; }
  h2 { font-size: 1.39rem; }
  .container { padding-left: 10px; padding-right: 10px; }
  .service-card, .card, .testimonial-card {
    min-width: 90vw;
    flex-basis: 100%;
    padding: 18px 10px 16px 10px;
  }
  .card-container, .service-grid, .testimonial-carousel {
    gap: 10px;
    flex-direction: column;
  }
  .footer-menu, .footer-social {
    flex-direction: column;
    gap: 10px;
  }
  .content-grid { flex-direction: column; gap: 10px; }
  .text-image-section { flex-direction: column; gap: 13px; }
  .feature-item { gap: 8px; }
  .cookie-banner {
    flex-direction: column;
    padding: 16px 10px;
    gap: 6px;
  }
  .cookie-modal {
    min-width: 0;
    padding: 24px 10px 12px 10px;
  }
}
@media (max-width: 580px) {
  .container { max-width: 100vw; padding: 0 5px; }
  .service-card, .testimonial-card, .card { padding: 13px 5px 12px 5px; }
  .footer-brand img { height: 26px; }
  h1, h2 { font-size: 1.18rem; }
}

/* ===== PRINT ===== */
@media print {
  header, .mobile-menu, footer, .cookie-banner, .cookie-modal, .modal-backdrop { display: none !important; }
  body { background: #fff; color: #222; }
}